| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] it [prep] | 321 |
|
| 2 | [was/were] [v-ing] it [prep] | 249 |
|
| 3 | [be] doing it [prep] | 244 |
|
| 4 | [was/were] doing [pron] [prep] | 80 |
|
| 5 | [was/were] do it [prep] | 49 |
|
